The first of Hugh Hefner's string of Playboy Clubs opened in Chicago, featuring waitresses in scanty bunny costumes: a strapless bathing suit, high heels, rabbit ears and a pin-on tail. According to the Chicago Tribune, more than 17,000 people ventured into the club in the month after it opened. The last of the original clubs closed in 1991, but at its peak there were more than 30 worldwide. Since 2006, a few new clubs have been launched - including one in Las Vegas - and the Tribune reported last year that plans are underway to open a new, more modern, Playboy Club in Chicago this year.